Mechanism box replacement auxiliary device

Abstract

The invention discloses an auxiliary device for replacing a mechanism box. The auxiliary device comprises a base; the stand column is rotationally mounted on the base through a base turntable; the two lifting arms are arranged in parallel, one ends of the two lifting arms are rotationally connected with the upper portion of the stand column, and the other ends of the two lifting arms are rotationally connected with the connecting piece; one end of the hydraulic cylinder is rotationally connected with the lower part of the stand column, and the other end of the hydraulic cylinder is rotationally connected with the middle part of the lower lifting arm; the suspension arm is rotationally mounted on the connecting piece through a suspension arm turntable; and the transfer bucket is rotationally mounted at the tail end of the suspension arm through a transfer bucket turntable. The mechanism box replacement auxiliary device can assist in lifting the mechanism box and keeping the mechanism box at a certain height, so that the mechanism box can be rapidly and accurately replaced, the operation time is remarkably shortened, the overall working efficiency is improved, manual intervention is reduced, and the safety risk of operation in a high-pressure environment is reduced; and the safety of workers is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power maintenance equipment, and in particular to a mechanism box replacement auxiliary device. Background Art

[0002] In the current substation maintenance work, there is no special tool to assist in the replacement of switch or knife switch mechanisms. The weight of a mechanism box is generally 70kg-150kg, and the height from the ground is 1-1.5m. At present, maintenance personnel usually lift the mechanism box by manpower, which poses a safety hazard of tipping over. It takes 4-6 hours to replace the mechanism box, which is very inefficient. Summary of the invention

[0003] In view of the above shortcomings, the present invention provides a mechanism box replacement auxiliary device, which can solve the problems of low replacement efficiency, high labor intensity and great safety hazards caused by the difficulty in lifting and holding the mechanism box during replacement of the existing mechanism box.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A mechanism box replacement auxiliary device, comprising:

[0006] Base;

[0007] A column, which is rotatably mounted on the base via a base turntable;

[0008] There are two lifting arms, which are arranged parallel to each other, one end of the two lifting arms is rotatably connected to the upper part of the column, and the other end is rotatably connected to the connecting piece;

[0009] A hydraulic cylinder, one end of which is rotatably connected to the lower part of the column, and the other end of which is rotatably connected to the middle part of the lifting arm located below;

[0010] A boom, which is rotatably mounted on the connecting member via a boom turntable;

[0011] The transfer bucket is rotatably mounted on the end of the boom through a transfer bucket turntable.

[0012] Furthermore, the base includes a plurality of support legs extending radially outward, the bottom surfaces of the support legs are provided with universal wheels, and the end positions of the support legs are provided with foot cups.

[0013] Furthermore, the supporting leg includes a sleeve and a telescopic rod sleeved in the sleeve, the universal wheel is mounted on the sleeve, and the foot cup is mounted on the end of the telescopic rod.

[0014] Furthermore, screws are fixedly arranged on both sides of the interior of the transfer bucket, and nuts are matched and screwed on the screws;

[0015] Two clamps arranged opposite to each other are slidably installed in the transfer bucket. The clamp is L-shaped as a whole, and its horizontal bottom is placed in the transfer bucket and is provided with clamp slots extending to both sides, and the clamp slots are sleeved on the screw rod.

[0016] Furthermore, the screw rod is arranged at the two side edges inside the transfer bucket, and side wall through grooves are opened at the two side walls of the transfer bucket corresponding to the position of the clamping plate, so that when the clamping plate moves outward to a certain position, it can match and pass through the side wall through grooves.

[0017] Furthermore, a avoidance groove is provided at the bottom of the transfer bucket.

[0018] Furthermore, a turntable locking mechanism is included, and the turntable locking mechanism is used to be installed on the base turntable, the boom turntable or the transfer bucket turntable to temporarily lock the base turntable, the boom turntable or the transfer bucket turntable;

[0019] The base turntable, the boom turntable and the transfer bucket turntable respectively include a fixed disk and a rotating disk mounted on the fixed disk;

[0020] The turntable locking mechanism comprises:

[0021] A positioning member, which is detachably mounted on the fixing plate, wherein a screw hole and a square hole are sequentially provided on the top surface of the positioning member extending downward, and a locking member placement hole is provided on the side of the positioning member facing the base turntable, the boom turntable or the transfer bucket turntable when the positioning member is installed, and the locking member placement hole is communicated with the square hole;

[0022] A locking member, which is matched and arranged in the locking member placement hole and can partially extend out of the locking member placement hole to support the rotating disk, and an inclined surface is arranged at the inner end of the locking member;

[0023] A push piece, which is matched and arranged in the square hole and partially extends upward to the bottom of the screw hole, and the lower end of the push piece abuts against the inclined surface of the inner end of the locking piece;

[0024] A locking bolt is matched and arranged on the screw hole, and its bottom abuts against the upper end of the pushing member.

[0025] Furthermore, the outer end of the locking member is provided with a locking portion which is consistent with the side surface of the rotating disk.

[0026] Furthermore, when the positioning member is installed, a locking portion accommodating groove for accommodating the locking portion is provided on the side facing the base turntable or the boom turntable or the transfer bucket turntable.

[0027] Furthermore, a seating hole is provided in the positioning member, the extension direction of the seating hole is consistent with the extension direction of the locking member seating hole, a reset spring is provided in the seating hole, one end of the reset spring is connected to the wall of the seating hole, and the other end is connected to the inner end of the locking member.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The mechanism box replacement auxiliary device of the present invention can assist in lifting the mechanism box and keeping it at a certain height, thereby helping to quickly and accurately complete the replacement of the mechanism box, significantly shortening the operation time and improving the overall work efficiency;

[0030] 2. The mechanism box replacement auxiliary device of the present invention reduces manual intervention, reduces the safety risk of working in a high-pressure environment, and ensures the safety of the staff;

[0031] 3. The mechanical arm structure undertakes heavy physical labor, reduces the physical burden of operators, and reduces the risk of occupational diseases caused by long-term physical labor;

[0032] 4. It can adapt to different types and sizes of mechanism boxes to better meet diverse operational needs and improve the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0034] Figure 1 It is a structural schematic diagram of the mechanism box replacement auxiliary device of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the transfer bucket in the present invention;

[0036] Figure 3 It is a structural schematic diagram of the turntable locking mechanism in the present invention;

[0037] Figure 4 is an isometric cross-sectional view of the turntable locking mechanism of the present invention;

[0038] Figure 5 It is a schematic diagram of the implementation of the mechanism box replacement auxiliary device of the present invention.

[0039] Among them, the markings shown in the figure are: 10-base; 11-support leg; 111-sleeve; 112-telescopic rod; 12-universal wheel; 13-foot cup; 20-column; 31-base turntable; 32-boom turntable; 33-transfer bucket turntable; 40-lifting arm; 50-connecting piece; 60-hydraulic cylinder; 70-boom; 80-transfer bucket; 81-clamp; 82-clamp slot; 83-screw; 84-nut; 85-side wall slot; 86-avoid slot; 87-handrail; 90-turntable locking mechanism; 92-screw hole; 93-square hole; 94-locking piece placement hole; 95-locking piece; 96-thrust piece; 97-locking bolt; 98-locking part; 99-placement hole; 910-reset spring; 911-locking part accommodating groove; 100-mechanism box. DETAILED DESCRIPTION

[0040] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Please refer to Figures 1 to 4 A preferred embodiment of the present invention provides a mechanism box replacement auxiliary device, which mainly includes a base 10, a column 20, a lifting arm 40, a connecting piece 50, a hydraulic cylinder 60, a boom 70 and a transfer bucket 80.

[0044] The base 10 is used to support the entire device to maintain the stability of the entire device and ensure stability during operation. The base 10 includes four support legs 11 that extend radially outward. The bottom surface of the support legs 11 is provided with universal wheels 12. The end of the support legs 11 is provided with foot cups 13. The universal wheels 12 facilitate the movement of the base 10, that is, the movement of the entire auxiliary device; the foot cups 13 can adjust the downward height, so that when used on uneven ground, by adjusting the foot cups 13 to abut the ground, the stability of the base 10 during operation is ensured. In a preferred embodiment, the support leg 11 includes a sleeve 111 and a telescopic rod 112 sleeved in the sleeve 111. The telescopic rod 112 can be partially retracted back into the sleeve 111 to achieve storage and reduce space occupancy, and can also be pulled out and extended to a larger range, so that the base 10 can cover a larger range, making the base 10 more secure. When configured in the form of a sleeve 111 and a telescopic rod 112 , the universal wheel 12 is mounted on the sleeve 111 , and the foot cup 13 is mounted on the end of the telescopic rod 112 .

[0045] The column 20 is rotatably mounted on the base 10 through the base turntable 31. The column 20 is arranged vertically and has a certain height, and can be rotated relative to the base 10 through the base turntable 31. The setting of the base turntable 31 can provide a basis for the rotation of the column 20 and its upper components, so that the column 20 and its upper components can be flexibly moved (rotated) in the horizontal plane, which is convenient for docking and replacement of the mechanism box.

[0046] There are two lifting arms 40 , which are arranged parallel to each other. One end of the two lifting arms 40 is rotatably connected to the upper part of the column 20 , and the other end of the two lifting arms 40 is rotatably connected to the connecting member 50 .

[0047] One end of the hydraulic cylinder 60 is rotatably connected to the lower part of the column 20, and the other end is rotatably connected to the middle part of the lifting arm 40 located below. Specifically, the bottom of the cylinder body of the hydraulic cylinder 60 is rotatably connected to the lower part of the column 20, and the end of the telescopic rod of the hydraulic cylinder 60 is rotatably connected to the middle part of the lifting arm 40 located below. At this time, when the telescopic rod of the hydraulic cylinder 60 is extended, it can push the lifting arm 40 located below to rotate upward. Under the action of the column 20 and the connecting member 50, the two lifting arms 40 rotate upward together. At this time, the connecting member 50 is lifted upward, and the connecting member 50 does not rotate during the lifting process and maintains the original horizontal state; and when the telescopic rod of the hydraulic cylinder 60 is retracted, it drives the two lifting arms 40 to rotate downward together, and at this time the connecting member 50 moves downward. Through the extension of the hydraulic cylinder 60, the smooth lifting of the connecting member 50 can be achieved. The hydraulic cylinder 60 is a manual hydraulic cylinder without the need for an additional driving mechanism. The hydraulic cylinder 60 is used to adjust the height of the connecting member 50 and its upper components to ensure that the connecting member 50 and its upper components can reach a suitable height when docking with the mechanism box.

[0048] The boom 70 is rotatably mounted on the connecting member 50 via the boom turntable 32, so that it can rotate relative to the connecting member 50 and can also move upward or downward with the connecting member 50. The boom 70 provides additional lateral support through the connection with the lifting arm 40 and the connecting member 50, so as to enable accurate docking and movement when replacing the mechanism box. The setting of the boom turntable 32 can provide a basis for the rotation of the boom 70 and its upper parts, so that the boom 70 and its upper parts can be flexibly moved (rotated) in the horizontal plane, which is convenient for docking and replacing the mechanism box.

[0049] The transfer bucket 80 is rotatably mounted on the end of the boom 70 through the transfer bucket turntable 33, so it can rotate relative to the boom 70 and can also move up or down with the boom 70, that is, when the boom 70 is lifted upward, the transfer bucket 80 is lifted upward together. The transfer bucket 80 is open at the top and one side (away from the boom 70), and the bottom of the interior is a plane to ensure that the mechanism box remains stable when placed in the transfer bucket 80. The setting of the transfer bucket turntable 33 can provide a basis for the rotation of the transfer bucket 80 and its upper components, so that the transfer bucket 80 and its upper components can be flexibly moved (rotated) in a horizontal plane, which is convenient for docking and replacement of the mechanism box.

[0050] The base turntable 31, the boom turntable 32 and the transfer bucket turntable 33 have the same structure.

[0051] When implementing, please refer to Figure 5 , move the entire mechanism box replacement auxiliary device to the operating position, extend the support legs 11, adjust the foot cup 13 to ensure that the device is stable and does not shake, and then the operator manually operates the hydraulic cylinder 60 to drive the lifting arm 40 to rotate upward together. At this time, the connecting piece 50 is lifted upward to drive the boom 70 and the transfer bucket 80 to a suitable height. After the transfer bucket 80 reaches a suitable height, the position of the transfer bucket 80 is adjusted by the base turntable 31, the boom turntable 32 and the transfer bucket turntable 33, so that it slowly approaches the power supply equipment (mechanism box) to prevent collision and wear of the equipment. When the mechanism box 100 completely enters the transfer bucket 80 and is confirmed to be stable, it is slowly lifted by the hydraulic cylinder 60 and moved to the designated position by rotation; after reaching the designated position, the transfer bucket 80 and the power supply equipment thereon are slowly lowered by the hydraulic cylinder 60. After the power supply equipment is stably transported, the transfer bucket 80 is slowly withdrawn to complete the operation. It can be understood that, with reference to the above operation, the mechanism box can be installed to the designated position through the mechanism box replacement auxiliary device of the present invention.

[0052] In a preferred embodiment, an avoidance groove 86 is provided at the bottom of the transfer bucket 80. By providing the avoidance groove 86, it is convenient to avoid the secondary line connecting pipeline when entering under the mechanism box, so that the mechanism box can enter the transfer bucket 80, effectively avoiding interference with the connecting pipeline during the replacement process, reducing the potential risk of damage, and ensuring the integrity of the equipment and the smooth progress of the operation.

[0053] Screws 83 are fixedly arranged on both sides of the transfer bucket 80, and nuts 84 are screwed on the screws 83; two clamps 81 arranged opposite to each other are slidably installed in the transfer bucket 80, and the clamps 81 are L-shaped as a whole, and the horizontal bottom is placed in the transfer bucket 80 and is provided with clamp slots 82 extending to both sides, and the clamp slots 82 are sleeved on the screws 83, and the clamps 81 can be tightened and fixed by tightening the nuts 84. The two clamps 81 arranged opposite to each other form a clamp, which can clamp and fix the mechanism box to prevent the mechanism box from shaking or falling. By setting movable clamps 81 arranged opposite to each other, it can adapt to mechanism boxes of different sizes. For example, in the exemplary embodiment of the present invention, the clamp body can be opened 90cm to the left and right to adapt to mechanism boxes of different sizes, such as being applicable to 500kV mechanisms, and adapting to the use of 110kV and below mechanism boxes, which solves the limitation of different mechanism box sizes on replacement operations, so that the mechanism box replacement auxiliary device can efficiently handle various types of equipment and improve the operation efficiency.

[0054] The screw rods 83 are arranged on the two side edges inside the transfer bucket 80, and side wall grooves 85 are opened at the positions of the side walls of the transfer bucket 80 corresponding to the positions of the splint 81, so that when the splint 81 moves outward to a certain position, it can match and pass through the side wall grooves 85. By setting the side wall grooves 85, on the one hand, the splint 81 can be moved outward to a more edge position, and on the other hand, the side wall grooves 85 can also be used to limit the splint 81 to ensure the stability of the splint 81 to ensure the stability of the clamping.

[0055] A handrail 87 is provided at the bottom of the transfer bucket 80 near the boom 70 . The handrail 87 is provided to facilitate fine-tuning of the transfer bucket 80 , such as rotating the transfer bucket 80 .

[0056] In a preferred embodiment, the mechanism box replacement auxiliary device further includes a turntable locking mechanism 90, which is used to be installed on the base turntable 31 or the boom turntable 32 or the transfer bucket turntable 33 to temporarily lock the base turntable 31 or the boom turntable 32 or the transfer bucket turntable 33. After locking the base turntable 31 or the boom turntable 32 or the transfer bucket turntable 33, the base turntable 31 or the boom turntable 32 or the transfer bucket turntable 33 cannot rotate. By limiting the rotation of the base turntable 31 and / or the boom turntable 32 and / or the transfer bucket turntable 33, the column 20 and / or the boom 70 and / or the transfer bucket 80 can be kept at a certain position without rotation or deviation, thereby achieving precise positioning.

[0057] The base turntable 31, the boom turntable 32 and the transfer bucket turntable 33 respectively include a fixed disk and a rotating disk mounted on the fixed disk. The rotating disk is coaxially arranged with the fixed disk, and the fixed disk is fixed on the component on which it is installed, and the rotating disk rotates. The fixed disk is usually installed and fixed in the form of pins, and actually has a plurality of screw holes. Based on this, the turntable locking mechanism 90 can utilize these screw holes for detachable installation with the fixed disk. Of course, pin holes can also be provided on the fixed disk, and detachable installation can be achieved by fixing with pins. The base turntable 31, the boom turntable 32 and the transfer bucket turntable 33 can be respectively configured with a turntable locking mechanism 90. Of course, the turntable locking mechanism 90 can be detachably installed, and the turntable locking mechanism 90 can also be not configured when not in use (no need to lock).

[0058] The turntable locking mechanism 90 includes a positioning member 91 , a locking member 95 , a pushing member 96 and a locking bolt 97 .

[0059] The positioning member 91 is detachably mounted on the fixed disk, such as by providing a threaded hole or a pin hole on the positioning member 91, which can correspond to the threaded hole or the pin hole of the fixed disk, so as to be fixed by bolts or pins. In this preferred embodiment, the positioning member 91 is in the shape of a semicircular ring as a whole, and its inner contour is consistent with the outer contour of the rotating disk. At this time, the positioning member 91 can be inserted from the side and abut against the outer periphery of the rotating disk, and the positioning member 91 and the fixed disk are respectively provided with pin holes. When the positioning member 91 is placed on the fixed disk and abuts against the rotating disk, the pin holes of the two can be directly opposite. At this time, by inserting a pin, the positioning member 91 can be fixed to the fixed disk, and both disassembly and assembly are very simple.

[0060] The top surface of the positioning member 91 extends downward and is provided with a screw hole 92 and a square hole 93 in sequence. When the positioning member 91 is installed, a locking member placement hole 94 is provided on the side facing the base turntable 31, the boom turntable 32 or the transfer bucket turntable 33. The locking member placement hole 94 is connected to the square hole 93.

[0061] The locking member 95 is matched and arranged in the locking member placement hole 94 and can partially extend out of the locking member placement hole 94 to support the rotating disk. The cross section of the locking member 95 is in the direction, and an inclined surface is arranged at the inner end of the locking member 95. The push member 96 is matched and arranged in the square hole 93 and partially extends upward to the bottom of the screw hole 92. The lower end of the push member 96 abuts against the inclined surface of the inner end of the locking member 95. In a preferred embodiment, the lower end of the push member 96 is arc-shaped, and the arc surface abuts tangentially with the inclined surface. The locking bolt 97 is matched and arranged on the screw hole 92, and the bottom abuts against the upper end of the push member 96. The locking bolt 97 uses a butterfly bolt to facilitate manual tightening. During implementation, when the locking bolt 97 is tightened inward, the push piece 96 can be driven downward, and the lower end of the push piece 96 interacts with the inclined surface of the inner end of the locking piece 95, thereby pushing the locking piece 95 outward to press against the rotating disk. At this time, the rotating disk cannot rotate, thereby locking the rotating disk. Since the locking piece 95 is driven outward by tightening the bolt 97 downward, the two are perpendicular to each other, so the locking piece 95 can be effectively kept pressed against the rotating disk to prevent loosening during use.

[0062] The outer end of the locking member 95 is provided with a locking portion 98 that is consistent with the side of the rotating disk. By providing the locking portion 98, the contact area with the rotating disk can be increased, and better locking can be achieved through greater friction. When the positioning member 91 is installed, a locking portion accommodating groove 911 for accommodating the locking portion 98 is opened on the side facing the base rotating disk 31, the boom rotating disk 32, or the transfer bucket rotating disk 33, so that when the locking member 95 is not extended, the locking portion 98 can be accommodated in the locking portion accommodating groove 911.

[0063] A seating hole 99 is also provided in the positioning member 91, and the extension direction of the seating hole 99 is consistent with the extension direction of the locking member seating hole 94. A reset spring 910 is provided in the seating hole 99, and one end of the reset spring 910 is connected to the hole wall of the seating hole 99, and the other end is connected to the inner end of the locking member 95. By providing the reset spring 910, when the locking member 95 is partially ejected, the reset spring 910 has a force pulling the locking member 95 inward. At this time, the locking member 95 has a tendency to reset. Therefore, when the locking bolt 97 is tightened outward, the locking member 95 can be reset inward under the action of the reset spring 910.

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mechanism box replacement auxiliary device, characterized in that: Included are: Base (10); A column (20) which is rotatably mounted on the base (10) via a base turntable (31); There are two lifting arms (40) which are arranged parallel to each other, one end of the two lifting arms (40) is respectively rotatably connected to the upper part of the column (20), and the other end is respectively rotatably connected to the connecting piece (50); A hydraulic cylinder (60), one end of which is rotatably connected to the lower part of the column (20), and the other end of which is rotatably connected to the middle part of the lifting arm (40) located below; A boom (70) rotatably mounted on the connecting member (50) via a boom turntable (32); The transfer bucket (80) is rotatably mounted on the end of the boom (70) via a transfer bucket turntable (33).

2. The mechanism box replacement auxiliary device according to claim 1, characterized in that: The base (10) comprises a plurality of support legs (11) extending radially outwards, the bottom surfaces of the support legs (11) are provided with universal wheels (12), and the ends of the support legs (11) are provided with foot cups (13).

3. The mechanism box replacement auxiliary device according to claim 2, characterized in that: The supporting leg (11) comprises a sleeve (111) and a telescopic rod (112) sleeved in the sleeve (111); the universal wheel (12) is mounted on the sleeve (111); and the foot cup (13) is mounted at the end of the telescopic rod (112).

4. The mechanism box replacement auxiliary device according to claim 1, characterized in that: Screw rods (83) are fixedly disposed on both sides of the interior of the transfer bucket (80), and nuts (84) are screwed on the screw rods (83); Two clamping plates (81) arranged opposite to each other are slidably installed in the transfer bucket (80). The clamping plates (81) are L-shaped as a whole, and the horizontal bottom is placed in the transfer bucket (80) and is provided with clamping plate grooves (82) extending to both sides. The clamping plate grooves (82) are sleeved on the screw rod (83).

5. The mechanism box replacement auxiliary device according to claim 4, characterized in that: The screw rod (83) is arranged at the two side edges inside the transfer bucket (80), and the two side walls of the transfer bucket (80) are provided with side wall through grooves (85) at the positions corresponding to the clamping plate (81), so that when the clamping plate (81) moves outward to a certain position, it can match and pass through the side wall through grooves (85).

6. The mechanism box replacement auxiliary device according to claim 1, characterized in that: The bottom of the transfer bucket (80) is provided with an avoidance groove (86).

7. The mechanism box replacement auxiliary device according to claim 1, characterized in that: The invention also comprises a turntable locking mechanism (90), wherein the turntable locking mechanism (90) is used to be installed on the base turntable (31) or the boom turntable (32) or the transfer bucket turntable (33) so as to temporarily lock the base turntable (31) or the boom turntable (32) or the transfer bucket turntable (33); The base turntable (31), the boom turntable (32) and the transfer bucket turntable (33) respectively include a fixed disk and a rotating disk mounted on the fixed disk; The rotating disk locking mechanism (90) comprises: A positioning member (91) is detachably mounted on the fixing plate, a top surface of the positioning member (91) extending downward is provided with a screw hole (92) and a square hole (93) in sequence, and a locking member placement hole (94) is provided on the side of the positioning member (91) facing the base turntable (31) or the boom turntable (32) or the transfer bucket turntable (33) when the positioning member (91) is installed, and the locking member placement hole (94) is communicated with the square hole (93); A locking member (95) is matched and arranged in the locking member placement hole (94) and can partially extend out of the locking member placement hole (94) to support the rotating disk, and an inclined surface is arranged at the inner end of the locking member (95); A push piece (96) is matched with the square hole (93) and partially extends upward to the bottom of the screw hole (92), and the lower end of the push piece (96) abuts against the inclined surface of the inner end of the locking piece (95); A locking bolt (97) is matched and arranged on the screw hole (92), and its bottom abuts against the upper end of the pushing member (96).

8. The mechanism box replacement auxiliary device according to claim 7, characterized in that: The outer end of the locking member (95) is provided with a locking portion (98) which is consistent with the side surface of the rotating disk.

9. The mechanism box replacement auxiliary device according to claim 8, characterized in that: When the positioning member (91) is installed, a locking portion receiving groove (911) for receiving the locking portion (98) is provided on the side facing the base turntable (31) or the boom turntable (32) or the transfer bucket turntable (33).

10. The mechanism box replacement auxiliary device according to claim 7, characterized in that: The positioning member (91) is also provided with a placement hole (99), the extension direction of the placement hole (99) is consistent with the extension direction of the locking member placement hole (94), and a reset spring (910) is provided in the placement hole (99), one end of the reset spring (910) is connected to the hole wall of the placement hole (99), and the other end is connected to the inner end of the locking member (95).

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